$7\frac{5}{8}$ =____

    I'm Amy Black．I have never seen sharks in the____．But as a(n)____，I have seen sharks in an aquarium(水族馆)．

    ____，there are between 200and 250 kinds of sharks of different sizes．Sharks are much____than other fishes．The largest carl be as long as 15____ largest shark____about 3，200 kilos．Usually sharks don't attack(攻击)people．Sometimes they attack people____themselves．One of____sharks is the Great White Shark．They attacked a lot of people on the beaches of America．

1895年，康有为、梁启超联合各省举人，请求光绪帝变法，史称“ ____“。1911年，革命党人发动的 ____取得胜利，史称“辛亥革命”。

下列关于“三角贸易”的表述正确的是（  ）